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| Format: | Artículo científico |
| Langue: | en |
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Universidade Estadual de Maringá
2015
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| Accès en ligne: | https://www.redalyc.org/articulo.oa?id=307239651010 |
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- Growth rhythm of Vochysia divergens Pohl (Vochysiaceae) in the Northern Pantanal Nadja Gomes Machado Luciana Sanches Aryadne Márcia Aquino Ludymilla Barboza da Silva Jonathan Willian Zangeski Novais Marcelo Sacardi Biudes Medicina climate Cambará phenology growth relation dendrometric bands The Pantanal is the largest wetland in the world, characterized by high biodiversity, but large areas have been invaded by Vochysia divergens , a flood-adapted pioneer and native tree of the riparian forest and Brazilian Savanna. Seasonality in rainfall causes annual rhythms in the tree’s physiology, in which climatic stress factors induce a cambial dormancy in tr ees and, in consequence, growth zones in the trunk. Current analysis evaluates the seasonal variation of the diameter increase of V. divergens specimens in a seasonal floodable forest of the Northern Brazil ian Pantanal. Field sampling was conducted between January and December 2012. Air temper ature, relative humidity and pr ecipitation were measured at a micrometeorological station, water level was meas ured by graded tape, and soil water content was measured by a portable TDR sensor. Diameter gr owth was monitored by dendrometric bands and aboveground litter production was sampled by litter traps. The annual diameter increase was 4.0 mm. There was correlation between diameter increment and climate and phenology, with the highest increase during the flooding period and the lowest during the dry season and reproduc tive period. Climate and phenology affected the growth rhythm of V. divergens . 2015 artículo científico 1679-9291 https://www.redalyc.org/articulo.oa?id=307239651010 en http://www.redalyc.org/revista.oa?id=3072 Acta Scientiarum. Health Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Health Sciences (Brasil) Num.1 Vol.37